<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 头像区域 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="">
            </div>
            <!-- 登录表单区域 -->
            <el-form ref="loginFormRef" :rules="loginFormRules" :model="loginForm" label-width="0" class="login_form">
                <!-- 用户名 -->
                <el-form-item prop="username">
                    <el-input v-model="loginForm.username"  prefix-icon="iconfont icon-user"></el-input>
                </el-form-item>
                <!-- 密码 -->
                <el-form-item prop="password">
                    <el-input v-model="loginForm.password" type="password" prefix-icon="iconfont icon-3702mima"></el-input>
                </el-form-item>
                <!-- 按钮区域 -->
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">登录</el-button>
                    <el-button type="info" @click="resetLoginForm">重置</el-button>
                </el-form-item> 
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
    data(){
        return {
            //这是登录表单的数据绑定对象
            loginForm:{
                username:'admin',
                password:'123456'
            },
            loginFormRules:{
                username:[
                    { required: true, message: '请输入用户名', trigger: 'blur' },
                    { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                ],
                password:[
                    { required: true, message: '请输入密码 ', trigger: 'blur' },
                    { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                ]
            }
        }
    },
    methods:{
        resetLoginForm(){
            // console.log(this);
            this.$refs.loginFormRef.resetFields();
        },
        login(){
            this.$refs.loginFormRef.validate(async (valid)=>{
                // console.log(valid);
                if (!valid) return;
                const {data:res} = await this.$http.post('/login',this.loginForm)
                // console.log(res);
                if (res.meta.status !== 200) return this.$message.error('登录失败');
                this.$message.success('登录成功');
                window.sessionStorage.setItem('token',res.data.token);
                this.$router.push('/home')
            })
        }
    }
}
</script>

<style lang="less" scoped>
.login_container{
    background-color: #2b4b6b;
    height: 100%;
}
.login_box{
    width: 450px;
    height: 300px;
    background-color: #fff;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%,-50%);
}
.avatar_box{
    height: 130px;
    width: 130px;
    border: 1px solid #eee;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    position: absolute;
    left: 50%;
    transform: translate(-50%,-50%);
    background-color: #fff;
    img{
        width: 100%;
        height: 100%;
        border-radius: 50%;
        background-color: #eee;
    }
}

.login_form{
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 10px;
    box-sizing: border-box;
}

.btns{
    display: flex;
    justify-content: flex-end;
}
</style>